Humidifier



2 Sheets-Sheet l R. c. BENDER HUMIDIFIER Filed March 1'7, 1927 May l, 1928.

May l, 1928.

R. C. BENDER HUMIDIFIER Filed March 17, 1927 2 Sheets-Sheet 2 ze )we @M W, f ww.

Patented May 1, 1928, Y-

UNITED STATES PATENT OFFICE.

i ROBERT C.BENDER, 0F DAVENPORT, IOWA,

HUMIDIFIER.

i' Application illed Hatch 17, 1927. Serial N0. 176,258.

This invention relates to new and useful improvements in humidifiers and dust collectors of the type disclosed in my copending `applications filed December 9, 1925, Serial N o. 74,425, and April 2, 1926, Serial No. 99,317, respectively.

In this typeV of humidifier which is designed for use in hotair heating systems, the

y of'hotair through the same and bring the hot air in Contact with the walls of the container, the inner surfaces of which are kept moist throughout `their entire areas so as `to facilitate theevaporation of water and insure Vproper degree of humidity. i

Further objects `of the invention are to provide a device of the class described in which the circulation of hot air is greatly increased and the air upon being properly conditioned orhumidiied is caused to pass through a suitable' dust collector or screen which separates the dust from the air passing therethrough,

Still further objects of the invention are to provide a novelform of water container by means of which the areasof the air passages are considerably increased andV the evaporation of water is greatly facilitated.

Additional objects of theinvention are to provide walls of the watercontainer with absorbent lining whichlining is kept moist above the water level by capillary action so that the evaporation of water readily takes place in said humidifier.

lVith these and other ob'ects in View, my

. invention consists in certain-novel features hereinafter of construction and arrangement of parts, more fullyk described and claimed, and illustrated inthe accompanying drawings, in which- Y Figure l is a front elevational viewof the A humidifier attached inposition on the grat- Figure 3 is an end elevational view, partly broken away, of the lower portion of the humidifier and the parts associated therewith. i

Figure 4 is a top plan view of the humidifier with the cover thereof removed.

Figure 5 is a perspective detail view of one of the absorbent lining members.

`Figure 6A is an enlarged horizontalfcross section taken through one end of same.

Figure 7 is a fragmental detail view of the humidifier and showing a modifiedform of ydust deflector or apron.

Figure 8 is a vertical section taken on line 8 8 of Figure 7. n Y i Referring by numerals to the accompanylng drawings, 10 indicates a wall register of a vhot air heating system having a grating or grille 11 on the upper portion of which rests vthe lower end'of casing 12. This casing comprises a rear wall 14, end walls 15, and a front wall 16, and is open at top and `bottom as indicated at 17 and 18, respectively.y

The front wall 16 is preferably inclined upwardly and outwardly so that the cross sectional area of the casing increases upwardly. The upper end ofv the casing is closedvby a removable cover 19 provided in 4its front and top walls with apertures 20 `through which the air is discharged from' the humidifier. The lower portion of front wall 16 is provided with an opening extending the full width of the casing as indicated at 16, while the upper portion of said front wall is formed imperforate.

A deliector or apron 21 extends downwardly and forwardly from the front wall 16 a suitable distance below said casing and deflects the air discharged through the register 10 into said casing through opening 16a. This deflector is of greater width than the width of the casing, thereby forming side portions 21a which extend rearwardly` on each side 'of casing 12. Each end wallul kprovided with horizontally disposed ,outwardly projecting portions 23 and 24,` respectively, one of which 23 is located near the front wall 16 while the other end 24 is located near the rear wall 14.

Projection 23 is disposed below the horizontal plane of projection 24 and when the deiector 21 is in position, projections` 23 engage the underside of the side portions 21a and form a rest therefor, while projections 24 engage the upper side of side Jortions 21a as shown in Figure 3. Said portions 21@l terlit "the walls thereot' so minute in upwardly projecting langea 2lb which project upwardly and are disposcd rearwardly of projections 2l and forni etopa which prevent. disengagement of the dellcctor :2l from its position on the canine;

Deflector :2l is preferably provided with a downwardly presented lnarginalltlange 21C. Extending' from wall lll innuediately above opening 16 is a horizontally disposed tlange 25 which forms overlapping. engagement with lnirizontally diapoeed portion 2l o clefleetor 2l. and thercb-f assit-ts in supportinfor the delict-tor in position and .seah1 `the joint between the cai-ing; and ilaid detleetor, thereby preventingY eocape ol' air therethrough.

A. water container.' 2G i@ removably urranged within casing l2 and spaced troni ai: to provide auitablc lu order to incre'r'c air passage 'ayey 2T.

` the surfaces ot the container coming in contract with the hot air, d container i;; providedwith acentrally dizlpoaed tubular portion or flue Q8 which extends the lull height ot the container and is open at top and bottom to allow the paezfaec o l1 hot air ltherethrough. vrl`be container iu supported in position in casing l2 by ini-ana` ot a pair ol Llshaped brackets 2l) the vertical portions of which are Secured to the. rear wall lll afi indicated at 230 while the horizontal por tionslthereof extend traneve L'ely ottzhe open bottoni ot the casing a nd torni ilu'iport for the container' as Shown in Figure 2.

. The lower edge ot rear wall t-t preterably notched "for the reception of horizontal portions 529 of brackets 29 so that said portions are disposed flush with the lower cdee of Said rear wall lil and tbc rear wall lt is yformed with offsets and rccesfle ll to bring the vertical portions 29 (luf-'h with Said-rear wall.

The inner faces or" the Walle of the water container are preferalily lined with absorbent material as indicated at fr. which matc rial is kepty saturated with water contained in the container-so that the evaporation ot` Lthewvatcr is greatly facilitated. Portion Q8 isprovidec with a tubular absorbent portion 3l which ia slipped thcrcovev while the walls ofthe `container are provided with absorbent material incinbera 32 which are carried by suitableframee 33. The latter terminate in *hook portions Ill. by means of which said member@1 can lufremovably aupported within the container.

Cover' lt) is provided with inwardly projecting horizontally disponed lugs 2:55 on which is supported a wire frame 3G carryincr a'screen preferably ot fabric 3T which serves to catch the dust and separate it from the air. Frame 36 and screen 37 preferably are co-'extensive with the crees; sectional area ot the. cover so that the hot'` air properly bruni tied is caused to pass through the ,screen bc rauit'al'ilc rapport lue' incaseA 3f) coinprieingl side bars or arur lll attacl'iablc at their upper end` to the side walle4 lo by t'asateniircr dcvices All and having' their lower cnili: uecured to upturncd cndr ot a horizontal bar -pll by attiufhiiu;- arcaneA il. (inc end ot cach bar l0 ia ;-=lotted ae indicated at flo to permit adjustment of raid bars loiulitudinallyrelative to the parte `with which they are awo- `ciated. The horizontally disposed `bar Atil n:

secured to the c'rillc or gnatiircf ll by farrewa; etti which clamp the yjrille between bar lil and short piccc;`l 17. which latter are arranged on the inner fide ot the grille. Horizontalljl disposed Slot.`-l Liti are provided in bar i3 for receiving screwy it', eo that tluI whole device may be ehiil'ted in a horizontal plane relative to the grille. ln thi,-: manner. a simple support is provided tor thc device and @aid dcvicc has a wide range ol adjust nient. pei'inittin;T the une ot the device in conjunction with lgrilli-e; ol various designa.

`lin `the modilicd form shown in Figure-a 'l' and t5 a dctlector -ltl if. provided with .i rear extcnaiou fit) which is vertically difposed and adapted to be ingertcrl behind theregister l0. thereby maintaining; thi| de vice in pofition. Tbl^ portion` `til of thil detleotor are engaged h v brackets ."l which are removably secured on thc infidc ot' cnil `allev 15 and, have horizontal portioiu Si! projecting outwardly through opcuing# ll and engaging the underside ot aid f-idc por tions l-Sl".

M v ilnjn'oved humiditicr and but collector is constrlu'ted so :o to allow maxinnun circulation ot hoty air theretln'ounh. whereby the water container in heated elliciently to ell'ect ready cv: poration ot water and it, is obviouz y that thc mor(I brot panne through the container the more humidity is produced and a greater percentage ot' dust is collected by the du1-;t ascreen. 'l`lu` absiorlrent lining?r provideei a ,irl-cally increased areay ot' moist surfaces: ae the entire inner .-urtaces olE the container walls are kept moist regardless, of the level ot the water. A?, long as the water pres-cnt in the container the alworbent lining)r will be kept u'loistl by `capillary action.

Vfbile have .shown the aborlaffnt linnn)Y liti lli)

covering all the walls of the container, generally only the lining covering the central yfiue will be necessary to providethe desired humidity.

A humidifier and dus-t collector of my im roved construction can be readily attac ed and detached from the register, does not occupy very much space and presents a neat appearance.

I claim:

l. A humidifier and dust collector for hot air heating systems comprising a casing open at top and bottom and adaptedto be sup ported by the wall register, a water container removably arranged in said casing in for closing the top of said casing, and :ib-

sorbent material `arranged in said container and kept saturated with the water contained therein.

2. A humidifier and dust collector for lic-t air heating systems comprising a casing open 4at top and bottom and adapted to be supported by the upper portion of a `wall register, a water container arranged in said casing in spaced relation with the walls thereof, a lining of absorbent material ar ranged on the inner faces of said cont iner and kept saturated with water by capillary action, a cover removably closing the upper end of said casing and provided in its top and front walls with apertures, and a dust screen removably arranged in said cover and coextensive with the cross sectional area thereof for Vextracting dust `from the air passing from said casing into said cover.

3. A humidifier and dust collector for hot air heating systems comprising a casing open at top and bottom and adapted to supported by the upper portion of 'a wall register, a water container arranged in said casing in spaced relation with the walls thereof, a lining ofrabsorbent material arranged on the inner faces of said container and kept saturatedwith water by capillary action, a cover removably closing the upper end of said casing and provided in its top and front walls with apertures, al dust screen removably arranged in said cover and coextensifvc with the cross sectional `area thereof for extracting dust from the air passing from said casinginto said cover, and a deflector extending forwardly and downwardly from said casing for deflecting air thereinto through an opening formed in the front wally of said casing.

4. A humidifier and dust collector for hot air heating systems comprising casing open at top and bottom, supports attachforwardly and downwardly from said czsing in front of said wall register for deflecting the air into said casing,

wall of the latter being iniperforate above said reflector and provided with large opening below said deector for admitting a-irinto said casing.

-5. A humidiiier and dust collector for hotJ`V air heating systems comprising in combination a casing open at topand bottom and adapted to rest on the top portion of a wall register, a water container removably arranged in said casing in spaced relation with the walls thereof, a removable cover for closing the upper end ofsaid casing, said cover being provided in its top and front walls with apertures,and a deflector plate extending from the front wall of said casing and provided with side extensions adapted to detachably engage the side walls of said casing for supporting said plate in position thereon, the front wall of said casing being imp'erforate above said deflector and being cut away below said plate to form an opening for admitting air thereinto.

GfA humidifier and dust collector for not air heating systems comprising in combination a casing open at top and bottoni, and having an obliquely disposed front wall whereby the top of .said container is of greater cross sectional area than 4the bottom thereof, supports foi` mounting said casing on a wall register of said heating system, a water container arranged in said casing in spaced relation with the walls thereof, a lining of absorbent material ar aiiged on the inner faces of the walls of said container for maintaining thefwalls thereof moist regardless of the level of the water contained there in, and a cover for the open top of said cas ing, said cover being provided with air discharge apertures.

7. A humidifier and dust collector for hot air heating systems comprising iu combination a casing open at top and bottoni, and havingV an obliquely disposed front wall whereby the top of saidcontainer fis of greater cross sectional area than the bottoni thereof, supports for mounting` said casing on a wall register of said heatingy system, a water container arranged in saidv casing in spaced relation with the walls thereof, a liningv of absorbent material arranged on the'inner faces of the walls of said container for maintaining the walls thereof moist regardless of the level of the water contained therein, a cover for the open end of said if the front 

